Dimensions Of B Series Paper Sizes

B Paper Sizes - Quick Lookup

Select the paper size from the 'Size' selector and the unit from the 'Unit' selector - the dimensions will
be shown in the dimensions box.

Size

Unit

Dimensions

in

is

The dimensions of the B series paper sizes, as defined by ISO 216, are given in the table below
in both millimetres and inches (cm measurements can be obtained by dividing the mm value by 10). The
B Series paper size chart is a visual explanation of how the B paper sizes relate to each other.

B Series Paper Sizes Chart.

Table of Paper Sizes From B0 to B10

Size

Width x Height (mm)

Width x Height (in)

B0

1000 x 1414 mm

39.4 x 55.7 in

B1

707 x 1000 mm

27.8 x 39.4 in

B2

500 x 707 mm

19.7 x 27.8 in

B3

353 x 500 mm

13.9 x 19.7 in

B4

250 x 353 mm

9.8 x 13.9 in

B5

176 x 250 mm

6.9 x 9.8 in

B6

125 x 176 mm

4.9 x 6.9 in

B7

88 x 125 mm

3.5 x 4.9 in

B8

62 x 88 mm

2.4 x 3.5 in

B9

44 x 62 mm

1.7 x 2.4 in

B10

31 x 44 mm

1.2 x 1.7 in

To obtain sizes in centimetres, convert mm values to cm by dividing by 10 and in
feet by dividing inch values by 12. More units here.

B Series Paper Size Tolerances

ISO 216 specifies tolerances for the production of B series paper sizes in the same way as
for A series paper sizes, the specific details of which are as follows:

B Series Paper Sizes Definition

The B series paper sizes were created in order to provide paper sizes that weren't covered
by the A series, but also use an aspect ratio of 1:root2. B sizes are defined as size B(n) being the
geometric mean of size A(n) and size A(n-1). The Geometric
Means of 2 numbers being the square root
of the product of the two numbers.

This system gives a useful property for enlarging and reducing documents in that the enlargement
from A(n) to B(n) is the same as that from B(n) to A(n-1).

As with the A series paper sizes, the standard lengths and widths are rounded to the nearest millimetre.